[bug] fixed broken test_found_inf (#725)

tests/test_zero_data_parallel/test_found_inf.py

@@ -31,7 +31,7 @@ def _run_test_found_inf(cpu_offload, shard_strategy_class, gpu_margin_mem_ratio)
         model_builder, train_dataloader, _, optimizer_class, criterion = get_components_func()
 
         with ZeroInitContext(
-                target_device=torch.device(f'cpu:0') if cpu_offload else torch.device(f'cuda:{get_current_device()}'),
+                target_device=torch.device(f'cpu:0') if cpu_offload else torch.device(get_current_device()),
                 shard_strategy=shard_strategy,
                 shard_param=True):
             zero_model = model_builder(checkpoint=True)